Finding the Fourth Proportional to 9,172,026.79, 12,657,557.90 and 5,042,231.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,172,026.79 : 12,657,557.90 = 5,042,231.98 : x
2. Step 2: Convert to fraction form
   9,172,026.79/12,657,557.90 = 5,042,231.98/x
3. Step 3: Cross multiply
   9,172,026.79x = 12,657,557.90 × 5,042,231.98
4. Step 4: Simplify right side
   9,172,026.79x = 63,822,343,213,043.33
5. Step 5: Solve for x
   x = 63,822,343,213,043.33/9,172,026.79
6. Step 6: Final answer
   x = 6,958,368.60