Finding the Fourth Proportional to 59,611,149.98, 89,416,731.89 and 18,673,779.20

Step by Step Solution

1. Step 1: Write the proportion equation
   59,611,149.98 : 89,416,731.89 = 18,673,779.20 : x
2. Step 2: Convert to fraction form
   59,611,149.98/89,416,731.89 = 18,673,779.20/x
3. Step 3: Cross multiply
   59,611,149.98x = 89,416,731.89 × 18,673,779.20
4. Step 4: Simplify right side
   59,611,149.98x = 1,669,748,307,559,006.25
5. Step 5: Solve for x
   x = 1,669,748,307,559,006.25/59,611,149.98
6. Step 6: Final answer
   x = 28,010,670.96