Finding the Fourth Proportional to 19,985,113.50, 29,978,499.69 and 5,801,689.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,985,113.50 : 29,978,499.69 = 5,801,689.50 : x
2. Step 2: Convert to fraction form
   19,985,113.50/29,978,499.69 = 5,801,689.50/x
3. Step 3: Cross multiply
   19,985,113.50x = 29,978,499.69 × 5,801,689.50
4. Step 4: Simplify right side
   19,985,113.50x = 173,925,946,877,226.25
5. Step 5: Solve for x
   x = 173,925,946,877,226.25/19,985,113.50
6. Step 6: Final answer
   x = 8,702,775.04