Finding the Fourth Proportional to 28,088,632.72, 42,132,948.45 and 7,893,874.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,088,632.72 : 42,132,948.45 = 7,893,874.72 : x
2. Step 2: Convert to fraction form
   28,088,632.72/42,132,948.45 = 7,893,874.72/x
3. Step 3: Cross multiply
   28,088,632.72x = 42,132,948.45 × 7,893,874.72
4. Step 4: Simplify right side
   28,088,632.72x = 332,592,216,648,518.19
5. Step 5: Solve for x
   x = 332,592,216,648,518.19/28,088,632.72
6. Step 6: Final answer
   x = 11,840,811.90