Finding the Fourth Proportional to 107,509,892.73, 148,375,035.72 and 65,718,420.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,509,892.73 : 148,375,035.72 = 65,718,420.72 : x
2. Step 2: Convert to fraction form
   107,509,892.73/148,375,035.72 = 65,718,420.72/x
3. Step 3: Cross multiply
   107,509,892.73x = 148,375,035.72 × 65,718,420.72
4. Step 4: Simplify right side
   107,509,892.73x = 9,750,973,021,791,988
5. Step 5: Solve for x
   x = 9,750,973,021,791,988/107,509,892.73
6. Step 6: Final answer
   x = 90,698,379.23