Finding the Fourth Proportional to 104,426.59, 144,108.71 and 56,679.93

Step by Step Solution

1. Step 1: Write the proportion equation
   104,426.59 : 144,108.71 = 56,679.93 : x
2. Step 2: Convert to fraction form
   104,426.59/144,108.71 = 56,679.93/x
3. Step 3: Cross multiply
   104,426.59x = 144,108.71 × 56,679.93
4. Step 4: Simplify right side
   104,426.59x = 8,168,071,595.19
5. Step 5: Solve for x
   x = 8,168,071,595.19/104,426.59
6. Step 6: Final answer
   x = 78,218.31