Finding the Fourth Proportional to 9,059,495.42, 12,497,339.41 and 5,385,799.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,059,495.42 : 12,497,339.41 = 5,385,799.15 : x
2. Step 2: Convert to fraction form
   9,059,495.42/12,497,339.41 = 5,385,799.15/x
3. Step 3: Cross multiply
   9,059,495.42x = 12,497,339.41 × 5,385,799.15
4. Step 4: Simplify right side
   9,059,495.42x = 67,308,159,926,931.66
5. Step 5: Solve for x
   x = 67,308,159,926,931.66/9,059,495.42
6. Step 6: Final answer
   x = 7,429,570.50