Finding the Fourth Proportional to 111,490,802.30, 167,076,771.15 and 77,372,290.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,490,802.30 : 167,076,771.15 = 77,372,290.10 : x
2. Step 2: Convert to fraction form
   111,490,802.30/167,076,771.15 = 77,372,290.10/x
3. Step 3: Cross multiply
   111,490,802.30x = 167,076,771.15 × 77,372,290.10
4. Step 4: Simplify right side
   111,490,802.30x = 12,927,112,406,389,110
5. Step 5: Solve for x
   x = 12,927,112,406,389,110/111,490,802.30
6. Step 6: Final answer
   x = 115,947,792.46