Finding the Fourth Proportional to 99,663,014.10, 139,188,097.50 and 99,663,014.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,663,014.10 : 139,188,097.50 = 99,663,014.10 : x
2. Step 2: Convert to fraction form
   99,663,014.10/139,188,097.50 = 99,663,014.10/x
3. Step 3: Cross multiply
   99,663,014.10x = 139,188,097.50 × 99,663,014.10
4. Step 4: Simplify right side
   99,663,014.10x = 13,871,905,323,694,674
5. Step 5: Solve for x
   x = 13,871,905,323,694,674/99,663,014.10
6. Step 6: Final answer
   x = 139,188,097.50