Finding the Fourth Proportional to 8,911,997.30, 12,298,751.82 and 5,427,499.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,911,997.30 : 12,298,751.82 = 5,427,499.40 : x
2. Step 2: Convert to fraction form
   8,911,997.30/12,298,751.82 = 5,427,499.40/x
3. Step 3: Cross multiply
   8,911,997.30x = 12,298,751.82 × 5,427,499.40
4. Step 4: Simplify right side
   8,911,997.30x = 66,751,468,123,798.91
5. Step 5: Solve for x
   x = 66,751,468,123,798.91/8,911,997.30
6. Step 6: Final answer
   x = 7,490,068.26