Finding the Fourth Proportional to 42,687.47, 64,038.72 and 14,600.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,687.47 : 64,038.72 = 14,600.93 : x
2. Step 2: Convert to fraction form
   42,687.47/64,038.72 = 14,600.93/x
3. Step 3: Cross multiply
   42,687.47x = 64,038.72 × 14,600.93
4. Step 4: Simplify right side
   42,687.47x = 935,024,868.01
5. Step 5: Solve for x
   x = 935,024,868.01/42,687.47
6. Step 6: Final answer
   x = 21,903.97