Finding the Fourth Proportional to 359,396,897.52, 537,676,911.72 and 272,209,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   359,396,897.52 : 537,676,911.72 = 272,209,572.72 : x
2. Step 2: Convert to fraction form
   359,396,897.52/537,676,911.72 = 272,209,572.72/x
3. Step 3: Cross multiply
   359,396,897.52x = 537,676,911.72 × 272,209,572.72
4. Step 4: Simplify right side
   359,396,897.52x = 146,360,802,400,710,368
5. Step 5: Solve for x
   x = 146,360,802,400,710,368/359,396,897.52
6. Step 6: Final answer
   x = 407,240,027.42