Finding the Fourth Proportional to 13,078,314.93, 19,621,885.68 and 5,790,779.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,078,314.93 : 19,621,885.68 = 5,790,779.78 : x
2. Step 2: Convert to fraction form
   13,078,314.93/19,621,885.68 = 5,790,779.78/x
3. Step 3: Cross multiply
   13,078,314.93x = 19,621,885.68 × 5,790,779.78
4. Step 4: Simplify right side
   13,078,314.93x = 113,626,018,786,532.83
5. Step 5: Solve for x
   x = 113,626,018,786,532.83/13,078,314.93
6. Step 6: Final answer
   x = 8,688,123.77