Finding the Fourth Proportional to 21,140,785.30, 29,533,326.50 and 21,140,785.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,140,785.30 : 29,533,326.50 = 21,140,785.30 : x
2. Step 2: Convert to fraction form
   21,140,785.30/29,533,326.50 = 21,140,785.30/x
3. Step 3: Cross multiply
   21,140,785.30x = 29,533,326.50 × 21,140,785.30
4. Step 4: Simplify right side
   21,140,785.30x = 624,357,714,731,300.50
5. Step 5: Solve for x
   x = 624,357,714,731,300.50/21,140,785.30
6. Step 6: Final answer
   x = 29,533,326.50