Finding the Fourth Proportional to 19,985,112.50, 29,978,498.19 and 5,801,688.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,985,112.50 : 29,978,498.19 = 5,801,688.50 : x
2. Step 2: Convert to fraction form
   19,985,112.50/29,978,498.19 = 5,801,688.50/x
3. Step 3: Cross multiply
   19,985,112.50x = 29,978,498.19 × 5,801,688.50
4. Step 4: Simplify right side
   19,985,112.50x = 173,925,908,196,193.81
5. Step 5: Solve for x
   x = 173,925,908,196,193.81/19,985,112.50
6. Step 6: Final answer
   x = 8,702,773.54