Finding the Fourth Proportional to 30,931.01, 42,684.54 and 17,502.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,931.01 : 42,684.54 = 17,502.15 : x
2. Step 2: Convert to fraction form
   30,931.01/42,684.54 = 17,502.15/x
3. Step 3: Cross multiply
   30,931.01x = 42,684.54 × 17,502.15
4. Step 4: Simplify right side
   30,931.01x = 747,071,343.82
5. Step 5: Solve for x
   x = 747,071,343.82/30,931.01
6. Step 6: Final answer
   x = 24,152.82