Finding the Fourth Proportional to 21,404,153.52, 29,529,323.28 and 12,231,875.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,404,153.52 : 29,529,323.28 = 12,231,875.52 : x
2. Step 2: Convert to fraction form
   21,404,153.52/29,529,323.28 = 12,231,875.52/x
3. Step 3: Cross multiply
   21,404,153.52x = 29,529,323.28 × 12,231,875.52
4. Step 4: Simplify right side
   21,404,153.52x = 361,199,006,550,798.12
5. Step 5: Solve for x
   x = 361,199,006,550,798.12/21,404,153.52
6. Step 6: Final answer
   x = 16,875,182.95