Finding the Fourth Proportional to 216,022,690.76, 298,112,221.76 and 116,903,442.81

Step by Step Solution

1. Step 1: Write the proportion equation
   216,022,690.76 : 298,112,221.76 = 116,903,442.81 : x
2. Step 2: Convert to fraction form
   216,022,690.76/298,112,221.76 = 116,903,442.81/x
3. Step 3: Cross multiply
   216,022,690.76x = 298,112,221.76 × 116,903,442.81
4. Step 4: Simplify right side
   216,022,690.76x = 34,850,345,066,897,680
5. Step 5: Solve for x
   x = 34,850,345,066,897,680/216,022,690.76
6. Step 6: Final answer
   x = 161,327,242.73