Finding the Fourth Proportional to 90,436, 124,801.86 and 50,692

Step by Step Solution

1. Step 1: Write the proportion equation
   90,436 : 124,801.86 = 50,692 : x
2. Step 2: Convert to fraction form
   90,436/124,801.86 = 50,692/x
3. Step 3: Cross multiply
   90,436x = 124,801.86 × 50,692
4. Step 4: Simplify right side
   90,436x = 6,326,455,887.12
5. Step 5: Solve for x
   x = 6,326,455,887.12/90,436
6. Step 6: Final answer
   x = 69,955.06