Finding the Fourth Proportional to 42,685.47, 64,035.72 and 14,598.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,685.47 : 64,035.72 = 14,598.93 : x
2. Step 2: Convert to fraction form
   42,685.47/64,035.72 = 14,598.93/x
3. Step 3: Cross multiply
   42,685.47x = 64,035.72 × 14,598.93
4. Step 4: Simplify right side
   42,685.47x = 934,852,993.78
5. Step 5: Solve for x
   x = 934,852,993.78/42,685.47
6. Step 6: Final answer
   x = 21,900.97