Finding the Fourth Proportional to 99,218,061.93, 136,865,082.45 and 59,515,028.62

Step by Step Solution

1. Step 1: Write the proportion equation
   99,218,061.93 : 136,865,082.45 = 59,515,028.62 : x
2. Step 2: Convert to fraction form
   99,218,061.93/136,865,082.45 = 59,515,028.62/x
3. Step 3: Cross multiply
   99,218,061.93x = 136,865,082.45 × 59,515,028.62
4. Step 4: Simplify right side
   99,218,061.93x = 8,145,529,298,971,429
5. Step 5: Solve for x
   x = 8,145,529,298,971,429/99,218,061.93
6. Step 6: Final answer
   x = 82,097,242.58