Finding the Fourth Proportional to 72,893,901.94, 100,594,538.69 and 39,854,189.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,893,901.94 : 100,594,538.69 = 39,854,189.05 : x
2. Step 2: Convert to fraction form
   72,893,901.94/100,594,538.69 = 39,854,189.05/x
3. Step 3: Cross multiply
   72,893,901.94x = 100,594,538.69 × 39,854,189.05
4. Step 4: Simplify right side
   72,893,901.94x = 4,009,113,761,898,042
5. Step 5: Solve for x
   x = 4,009,113,761,898,042/72,893,901.94
6. Step 6: Final answer
   x = 54,999,302.48