Finding the Fourth Proportional to 215,926,367.67, 297,977,489.86 and 116,806,870.72

Step by Step Solution

1. Step 1: Write the proportion equation
   215,926,367.67 : 297,977,489.86 = 116,806,870.72 : x
2. Step 2: Convert to fraction form
   215,926,367.67/297,977,489.86 = 116,806,870.72/x
3. Step 3: Cross multiply
   215,926,367.67x = 297,977,489.86 × 116,806,870.72
4. Step 4: Simplify right side
   215,926,367.67x = 34,805,818,135,547,132
5. Step 5: Solve for x
   x = 34,805,818,135,547,132/215,926,367.67
6. Step 6: Final answer
   x = 161,192,996.07