Finding the Fourth Proportional to 99,684,061.20, 149,526,091.80 and 99,684,061.20

Step by Step Solution

1. Step 1: Write the proportion equation
   99,684,061.20 : 149,526,091.80 = 99,684,061.20 : x
2. Step 2: Convert to fraction form
   99,684,061.20/149,526,091.80 = 99,684,061.20/x
3. Step 3: Cross multiply
   99,684,061.20x = 149,526,091.80 × 99,684,061.20
4. Step 4: Simplify right side
   99,684,061.20x = 14,905,368,085,988,020
5. Step 5: Solve for x
   x = 14,905,368,085,988,020/99,684,061.20
6. Step 6: Final answer
   x = 149,526,091.80