Finding the Fourth Proportional to 31,005,511.81, 42,791,680.69 and 17,779,864.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,005,511.81 : 42,791,680.69 = 17,779,864.41 : x
2. Step 2: Convert to fraction form
   31,005,511.81/42,791,680.69 = 17,779,864.41/x
3. Step 3: Cross multiply
   31,005,511.81x = 42,791,680.69 × 17,779,864.41
4. Step 4: Simplify right side
   31,005,511.81x = 760,830,280,499,765.62
5. Step 5: Solve for x
   x = 760,830,280,499,765.62/31,005,511.81
6. Step 6: Final answer
   x = 24,538,549.31