Finding the Fourth Proportional to 56,088.53, 84,108.17 and 21,003.59

Step by Step Solution

1. Step 1: Write the proportion equation
   56,088.53 : 84,108.17 = 21,003.59 : x
2. Step 2: Convert to fraction form
   56,088.53/84,108.17 = 21,003.59/x
3. Step 3: Cross multiply
   56,088.53x = 84,108.17 × 21,003.59
4. Step 4: Simplify right side
   56,088.53x = 1,766,573,308.00
5. Step 5: Solve for x
   x = 1,766,573,308.00/56,088.53
6. Step 6: Final answer
   x = 31,496.16