Finding the Fourth Proportional to 87,672,237.10, 123,009,870.50 and 87,672,237.10

Step by Step Solution

1. Step 1: Write the proportion equation
   87,672,237.10 : 123,009,870.50 = 87,672,237.10 : x
2. Step 2: Convert to fraction form
   87,672,237.10/123,009,870.50 = 87,672,237.10/x
3. Step 3: Cross multiply
   87,672,237.10x = 123,009,870.50 × 87,672,237.10
4. Step 4: Simplify right side
   87,672,237.10x = 10,784,550,532,116,294
5. Step 5: Solve for x
   x = 10,784,550,532,116,294/87,672,237.10
6. Step 6: Final answer
   x = 123,009,870.50