Finding the Fourth Proportional to 56,543,146.39, 78,032,875.09 and 42,579,866.27

Step by Step Solution

1. Step 1: Write the proportion equation
   56,543,146.39 : 78,032,875.09 = 42,579,866.27 : x
2. Step 2: Convert to fraction form
   56,543,146.39/78,032,875.09 = 42,579,866.27/x
3. Step 3: Cross multiply
   56,543,146.39x = 78,032,875.09 × 42,579,866.27
4. Step 4: Simplify right side
   56,543,146.39x = 3,322,629,385,995,814.50
5. Step 5: Solve for x
   x = 3,322,629,385,995,814.50/56,543,146.39
6. Step 6: Final answer
   x = 58,762,725.43